The correct answer is D)negative enthalpy change and negative entropy change
Given the data, the correct statement is negative enthalpy change and negative entropy change (Option D)
Gibbs free energyΔG = ΔH – TΔS
Where
ΔG is the Gibbs free energy ΔH is the enthalpy changeT is the temperature ΔS is the change in entropyNOTE
ΔG = +ve (non spontaneous) ΔG = 0 (equilibrium) ΔG = –ve (spontaneous)Since the reaction is at low temperature, then TΔS must be smaller than ΔH
Thus, ΔH and ΔS must be negative for the reaction to be spontaneous as illustrated below:
ΔH = -ve (greater)ΔS = -veΔG =?ΔG = ΔH – TΔS
ΔG = (-ve) – T(-ve)
ΔG = (-ve) – T(-ve)
ΔG = –ve
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Atoms sometimes form bonds to
A. Lose energy
B. Become more stable
C. Give away neutrons
D. Give away protons
Atoms sometimes form bonds to become more stable. Option B is correct.
The stability of atoms is determined by the arrangement and distribution of electrons in their energy levels or electron shells. Atoms tend to have the most stable configuration when their outermost electron shell is filled with electrons, either by gaining, losing, or sharing electrons with other atoms.
In the process of bond formation, atoms interact with each other and undergo a redistribution of electrons. This redistribution allows atoms to achieve a more favorable electron configuration, often resembling that of a noble gas with a full outer electron shell.
By forming chemical bonds, atoms can fill or empty their outermost electron shells, which increases the stability of the entire system. The resulting stability is driven by the decrease in potential energy associated with achieving a more favorable electron configuration.
Hence, B. is the correct option.
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Will give brainlest. Quinn was attempting to model the rock cycle with taffy pieces. She cut the taffy into small pieces with scissors. What portion of the rock cycle is she modeling to start her activity?
A.Erosion, where rock pieces are broken into tiny sediments
B.Weathering, where rock pieces are broken into tiny sediments.
C.Cementation, where sediments and rock pieces are smashed and cemented together.
D.Cutting the taffy into small pieces is not modeling a portion of the rock cycle.
Study the diagram of a cell.
Which structures are found in both plant and animal cells?
W and X
W and Z
X and Y
Y and Z
Answer:
W and Z
Explanation:
W is cell membrane and Z is mitochondria. Both plant and animal cells have cell membrane, which is semi-permeable and slows the exchange of certain molecules in and out of the cell. Mitochondria is present in both animal and plant cells. Mitochondria is known as the powerhouse of cell. ATP through oxidative phosphorylation is generated in the mitochondria.
The wax of a burning candle is a fuel that combines with oxygen in the air. As the fuel is consumed, what happens to most of the energy stored in the bonds of the wax? A. It is used to produce work. B. It stays in the wax. C. It is released as potential energy. D. It is released as heat and light.
Answer:D. It is released as heat and light.
Explanation:
Energy cannot be created nor destroyed but can be converted from one form to another. This is the law of the conservation of energy. Energy is stored in the wax. When the wax is burnt, that energy is converted to another form of energy. In this case heat and light. Energy exists in various forms in nature. Energy is always converted from one form to another.
Which 1.0 M acid solution has the largest concentration of hydronium [H3O+]?
HNO2
H2CO3
H2SO4
H3BO3
Answer:
H2SO4
Explanation:
OTHER ACIDS ARE WEAK ACIDS AND A VERY FEW AMOUNT OF H+ ARE RELEASED TO THE MEDIUM
The 1.0 M acid solution with the largest concentration of hydronium [H3O+] is H2SO4 (sulfuric acid). H2SO4 is a strong acid that completely ionizes in water, resulting in a high concentration of hydronium ions.
Explanation:The 1.0 M acid solution with the largest concentration of hydronium [H3O+] is H2SO4 (sulfuric acid).
When an acid dissolves in water, it donates hydrogen ions (H+) to form hydronium ions (H3O+). The concentration of hydronium ions is directly related to the strength of the acid. In this case, H2SO4 is a strong acid, meaning it completely ionizes in water, resulting in a high concentration of hydronium ions.
On the other hand, HNO2 (nitrous acid), H2CO3 (carbonic acid), and H3BO3 (boric acid) are all weak acids, meaning they only partially ionize in water and produce lower concentrations of hydronium ions.
I need help with # 7
What started the Russo-Japanese War?
Answer:
Late in the night on February 8, 1904, Japan launched a surprise attack against the Russian-held Port Arthur, along the coast of Manchuria, beginning the Russo-Japanese War.
Explanation:
hope this helps
Final answer:
The Russo-Japanese War started due to territorial disputes in Manchuria and Korea, with Japan launching a surprise attack on Port Arthur in 1904. Japan's victory altered international relations and signaled the rise of Asian military prowess against European powers.
Explanation:
The Russo-Japanese War began primarily due to territorial rivalries in Manchuria and Korea. In the winter of 1904, Japan initiated the conflict with a surprise naval attack on the Russian fleet at Port Arthur because of Russia's military presence in Manchuria and its refusal to recognize Japan's interests in Korea. Industrialization in Japan played a crucial role, enabling its military to achieve rapid victories over Russia. This conflict ended with the signing of the Treaty of Portsmouth in 1905, with Japan gaining control over Korea and parts of Manchuria. The war not only demonstrated Japan's industrial military power but also influenced international dynamics by challenging European influence in Asia and stirring political unrest within Russia.
describe how you would separate a mixture of water sand pebbles and paper clips
Answer:
Explanation:
Separation
what is the total amount of heat, in joules, required to completely vaporize a 50.0-gram sample of liquid water at its boiling point at standard pressure
Which represents the self ionization of water at 25 degrees
PLEASE HELP! GIVING 22 POINTS!
PLEASE GIVE 2-3 SENTENCES!
An organism has the scientific name Canis lupus. Based on your knowledge of taxonomic categories explain how it is similar to and dissimilar from another organism, Canis latrans.
Answer:Differences are that Canis latrans/'Coyte' is smaller than Canis lupus/'Gray Wolf'. and the similarities are both canines and carnivorous
Explanation:
Why is potassium iodide electrically neutral?
Give the correct balanced equation for the single replacement reaction of magnesium with aluminum oxide. A) Mg + AlO → MgO + Al B) Mg + Al2O3 → MgO + Al C) 3Mg + Al2O3 → 3MgO + 2Al D) Mg + Al2O3 → MgO3 + Al2
Answer is C
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A 15 mL sodium hydroxide solution of unknown concentration is titrated with 34.5ml of 1.2M HCl solution. What was the concentration of the sodium hydroxide solution?
scientists have determined the average salinity of ocean water to be equal to ___
a. 3.45 g/mL
b. 34.5 g/kg
c. 34.5 g/mL
d. 3.45 g/kg
Identify two kinds of data the student will likely collect during his experiment. Identify the type of data collected and how the student might present his data.
Although your question is incomplete a general answer on the two kinds of data a student will collect during an experiment are : Qualitative and Quantitative data
Qualitative data are data that describes the physical attributes of the results of an experiment. It can be obtained by observation.
Example : the color of the solute or solvent used during the experiment whileQuantitative data are data obtained in the numerical form during an experiment, it can be obtained by taking physical measurements and they are collected for statistical analysis.
Example : The molecular Weight of the solution, solvent or solute used for an experiment.Hence the two main types of data collected during an experiment are : Quantitative and Qualitative data.
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A book is pushed across the table by a student. The student stops pushing on the book and the book slows down and stops. The force stopping the book is a force known as A) inertia. B) friction. C) the applied force. D) the action-reaction force.
How many molecules are in 3.2 mol of ammonia,NH3
To find the number of molecules in 3.2 mol of ammonia (NH3), we can use Avogadro's number. Multiply 3.2 mol by Avogadro's number (approximately 6.022 x 10^23 molecules/mol) to get approximately 1.9264 x 10^24 molecules.
Explanation:To calculate the number of molecules in 3.2 mol of ammonia (NH3), we can use Avogadro's number. Avogadro's number is approximately 6.022 x 1023 molecules/mol. So, to find the number of molecules in 3.2 mol of ammonia, we multiply 3.2 mol by Avogadro's number:
Number of molecules = 3.2 mol x 6.022 x 1023 molecules/mol = 1.9264 x 1024 molecules
Therefore, there are approximately 1.9264 x 1024 molecules in 3.2 mol of ammonia.
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Which would not be associated with stable atmospheric conditions
afternoon thunder showers is the answer
The correct answer is - afternoon thunder showers.
When we say stable atmospheric conditions it means that the atmosphere should be relatively calm, without having any disturbances in it. A nice example for a stable atmospheric conditions is a clear sunny sky and a calm wind. On the other hand, we have the afternoon thunder showers. The afternoon thunder showers are the total opposite of stable atmospheric conditions. When they occur, there's lot of disturbances, air pressures are mixing, the winds are changing speeds, heavy rainfall occurs, the air pressure changes rapidly, there's electrical charges, all in all creating a real mess in the atmosphere.
Answer:
afternoon thunder showers.
Explanation:
if a copper acetate hydrate, Cux(C2H3O2)y zH2O compound is found to contain 31.82% Copper, 59.14% acetate,and the remainder is water. What is the empirical formula of this compound ?
What is the frequency of a wave?
A the distance traveled by the wave during one full cycle
B. The distance from the beginning to the end of a cycle
C. The amount of cycles that occur in a given time
D. the amount of time that one full cycle takes
The frequency of a wave is the distance from the beginning to the end of a cycle. Therefore, option B is correct.
What do you mean by the term frequency ?Frequency is measured in hertz and is defined as the quantity of oscillations of a wave per unit of time (Hz).
The equation f = vλ , where is the wavelength in metres and v is the wave speed in m/s, may be used to determine the frequency of a wave if the wavelength and speed of the wave are known.
The quantity of waves that pass a set location in a predetermined period of time is known as frequency. Hence, if a wave passes through in half a second, the frequency is 2 per second. The frequency is 100 times per hour if it takes 1/100 of an hour.
Thus, option B is correct.
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there are two parts of photosynthesis- the light reactions and the dark reactions. what is the end product of the dark reactions
All moving parts produce friction. true or false
15 POINTS! HELP!!
The Doppler effect is used in police car to measure _______?
a) temperature
b) weather
c) speed
d) reckless driving
Molecular weight of PbCl2 = 278 g/mole Mass of beaker + PbCl2 = 62.19 g Mass of beaker = 57.77 g Mass of PbCl2 per 100 mL = g Moles PbCl2 per 100 mL = [Pb-2] based upon this investigation = M [Cl-] based upon this investigation = M
This food chain is incomplete. Two groups of organisms are missing. One group of organisms that is missing are the producers, plants and other photosynthetic organisms. They turn sunlight into chemical energy. What is the other missing group and what do they do? A) Carnivores that eat only meat. B) Herbivores that eat only plants. C) Predators that prey on all other levels of consumers. D) Decomposers that recycle matter back into the food chain.
Answer:
D
Explanation:
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Answer:
D) Decomposers that recycle matter back into the food chain.
Explanation:
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The population of wild turkeys in an area tripled over the course of three years. Which of the following could be a contributing factor?an increase in the population of domestic turkeys an increase in predators decrease in resources decrease in predators
What determines the atomic number of an element?
A. protons
B. neutrons
C. electrons
Ibis was created by the bureau of alcohol ,tobacco, firearms and explosives in the United States true or false?
Answer: It is true.
Explanation: Hope it helps! :)
Answer:
false
Explanation:
the correct answer is Forensic Technology, Inc.